Mutatis Mutandis writes "The BBC is reporting that a team of scientists from Oxford, Heidelberg and Munich has created the first accurate three-dimensional images of the HIV virus. The virus was found to have an average diameter of 125 nanometers, well below the wavelength of visible light. In the past the structure of viruses with a regular structure has been produced by 3D reconstruction techniques that work on a set of electron microscopy images of different viruses, but the irregular structure of HIV does not allow this. Scientists have now used a tomography technique that employs a series of images taken from a single virus, somewhat similar to the better known X-Ray CAT scan, but on a quite different scale." Structure also has a video of the 3-d rendering available for download. Relatedly an anonymous reader writes "A research team at Brown University has genetically modified bacteria found in yogurt so that the bugs produce a protein proven to block HIV infection in monkeys. The results offer hope for a microbicide that can prevent the spread of HIV, which now affects about 40 million people."